Toyota Tundra (2015 year). Manual — part 978
A
END (FRONT NO. 2 SPEAKER ASSEMBLY IS
DEFECTIVE)
5.
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
*1: for RH Side
*2: for LH Side
(a) Disconnect the J137 and J138 radio and display receiver assembly connectors.
(b) Disconnect the M8*1 and/or N10*2 front No. 1 speaker assembly connector.
(c) Disconnect the J147*1 and/or J149*2 front No. 2 speaker assembly connector.
(d) Disconnect the O1*1 and/or O7*2 rear No. 1 speaker assembly connector.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for RH side
for LH side
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-1 (FR+) - J147-3 (TWR+)
Always
Below 1 Ω
J137-5 (FR-) - J147-2 (TWR-)
Always
Below 1 Ω
J147-1 (+) - M8-1
Always
Below 1 Ω
J147-4 (-) - M8-2
Always
Below 1 Ω
J138-1 (RR+) - O1-1
Always
Below 1 Ω
J138-3 (RR-) - O1-2
Always
Below 1 Ω
J137-1 (FR+) - Body ground
Always
10 kΩ or higher
J137-5 (FR-) - Body ground
Always
10 kΩ or higher
J147-1 (+) - Body ground
Always
10 kΩ or higher
J147-4 (-) - Body ground
Always
10 kΩ or higher
J138-1 (RR+) - Body ground
Always
10 kΩ or higher
J138-3 (RR-) - Body ground
Always
10 kΩ or higher
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-2 (FL+) - J149-3 (TWL+)
Always
Below 1 Ω
J137-6 (FL-) - J149-2 (TWL-)
Always
Below 1 Ω
J149-1 (+) - N10-1
Always
Below 1 Ω
J149-4 (-) - N10-2
Always
Below 1 Ω
J138-2 (RL+) - O7-1
Always
Below 1 Ω
J138-6 (RL-) - O7-2
Always
Below 1 Ω
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit;...
OK
OK
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-2 (FL+) - Body ground
Always
10 kΩ or higher
J137-6 (FL-) - Body ground
Always
10 kΩ or higher
J149-1 (+) - Body ground
Always
10 kΩ or higher
J149-4 (-) - Body ground
Always
10 kΩ or higher
J138-2 (RL+) - Body ground
Always
10 kΩ or higher
J138-6 (RL-) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
6.
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
(a) Remove the front No. 1 speaker assembly
.
(b) Inspect the front No. 1 speaker assembly
.
NG
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY
7.
CHECK FRONT NO. 2 SPEAKER ASSEMBLY
(a) Replace the front No. 2 speaker assembly with a known good one
.
(b) Check that the malfunction disappears.
NOTICE:
Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.
Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.
Perform the above inspection on both LH and RH sides.
OK:
Malfunction disappears.
NG
GO TO STEP 8
OK
END (FRONT NO. 2 SPEAKER ASSEMBLY IS
DEFECTIVE)
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit;...
8.
INSPECT REAR NO. 1 SPEAKER ASSEMBLY
(a) Remove the rear No. 1 speaker assembly
.
(b) Inspect the rear No. 1 speaker assembly
.
Result
RESULT
PROCEED TO
OK (for Column Shift Type)
A
OK (for Floor Shift Type)
B
NG
C
B
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
C
REPLACE REAR NO. 1 SPEAKER ASSEMBLY
A
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
9.
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
*1: for RH Side
*2: for LH Side
*3: for 9 Speakers
(a) Disconnect the J137 and J138 radio and display receiver assembly connectors.
(b) Disconnect the M8*1 and/or N10*2 front No. 1 speaker assembly connector.
(c) Disconnect the J147*1 and/or J149*2 front No. 2 speaker assembly connector.
(d) Disconnect the J150 front No. 4 speaker assembly connector.
(e) Disconnect the O1*1 and/or O7*2 rear No. 1 speaker assembly connector.
(f) Disconnect the O2*1 and/or O8*2 rear No. 2 speaker assembly connector*3.
(g) Disconnect the J144 and J145 stereo component amplifier assembly connectors.
(h) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for RH side
for LH side
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-1 (FR+) - J147-3 (TWR+)
Always
Below 1 Ω
J137-5 (FR-) - J147-2 (TWR-)
Always
Below 1 Ω
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit;...
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-11 (FR+) - J145-2 (FR+)
Always
Below 1 Ω
J137-5 (FR-) - J145-7 (FR-)
Always
Below 1 Ω
J147-1 (+) - J150-1 (+)
Always
Below 1 Ω
J147-4 (-) - J150-4 (RL1-)
Always
Below 1 Ω
J144-1 (R+) - M8-1
Always
Below 1 Ω
J144-5 (R-) - M8-2
Always
Below 1 Ω
J138-1 (RR+) - J145-9 (RR+)
Always
Below 1 Ω
J138-3 (RR-) - J145-10 (RR-)
Always
Below 1 Ω
J138-1 (RR+) - O2-3*
Always
Below 1 Ω
J138-3 (RR-) - O2-2*
Always
Below 1 Ω
J145-4 (WFR+) - O1-1
Always
Below 1 Ω
J145-11 (WFR-) - O1-2
Always
Below 1 Ω
J137-1 (FR+) - Body ground
Always
10 kΩ or higher
J137-5 (FR-) - Body ground
Always
10 kΩ or higher
J147-1 (+) - Body ground
Always
10 kΩ or higher
J147-4 (-) - Body ground
Always
10 kΩ or higher
J144-1 (R+) - Body ground
Always
10 kΩ or higher
J144-5 (R-) - Body ground
Always
10 kΩ or higher
J138-1 (RR+) - Body ground
Always
10 kΩ or higher
J138-3 (RR-) - Body ground
Always
10 kΩ or higher
J145-4 (WFR+) - Body ground
Always
10 kΩ or higher
J145-11 (WFR-) - Body ground
Always
10 kΩ or higher
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-2 (FL+) - J149-3 (TWL+)
Always
Below 1 Ω
J137-6 (FL-) - J149-2 (TWL-)
Always
Below 1 Ω
J137-2 (FL+) - J145-1 (FL+)
Always
Below 1 Ω
J137-6 (FL-) - J145-6 (FL-)
Always
Below 1 Ω
J149-1 (+) - J150-3 (RI1+)
Always
Below 1 Ω
J149-4 (-) - J150-2 (-)
Always
Below 1 Ω
J144-2 (L+) - N10-1
Always
Below 1 Ω
J144-6 (L-) - N10-2
Always
Below 1 Ω
J138-2 (RL+) - J145-3 (RL+)
Always
Below 1 Ω
J138-6 (RL-) - J145-8 (RL-)
Always
Below 1 Ω
J138-2 (RL+) - O8-3*
Always
Below 1 Ω
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit;...
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